According the different thermocoupe wire,thermocouple has four type
are S,R,Band WRe Type.

Type

Model

+leg

-leg

R

QR-KR

PtRh13%

Pt

S

QR-KS

PtRh10%

Pt

B

QR-KB

PtRh30%

PtRh6%

WRe

QR-KW

WRe3%

WRe25%

Type

Model

Max.working Temperature°c

Wire diameter(mm)

R

QR-KR

1760°c

0.04

S

QR-KS

1760°c

0.04

B

QR-KB

1800°c

0.04

WRe

QR-KW

1820°c

0.1

Accroding the different thermocouple connector,thermocouple head
can be divide in 602 type and 604 type.

Type

Model

602(Round bottom)

QR-KR/S/B/W-602

604(Triangle bottom)

QR-KR/S/B/W-604

Accroding the different thermocouple wire tolerance,It have two
type are common thermocouple wire(P) and exact thermocouple
wire(J).

Type

Model

Accuracy

P(common wire)

QR-KR/S/B/W-604/602P

≤5°c

J (exact wire)

QR-KR/S/B/W-604/602J

≤2°c

Technical Data and SpecificationThe thermocouple is implemented by YB/T 163-2008 standard.The temerature scale is according to IEC60584-1-1977 and
calibration according to IEC 60584-2 tolerance.Thermocouple accuracy at : (0+5)°C melting point Pd (1555°C) By
request, accuracy of thermocouple cap can be -50°CMax. Immersion time at 1650°C : 7 seconds.Measuring time : 3 to 6 seconds.